Improvement in spindle and bobbin tubes for spinning-machines



Fig. 4 represents the same with the i UNITED STATES PATENT OFFICE.

ALEXANDER MCFARLAND AND CHARLES W. PACK, OF BATERSON, N, J.

IMPROVEMENT IN SPINDLE AND BBBIN TUBES FOR SPINNING-MACHINES,

Specification forming part of Letters Patent NO. 93,633, dated August 10, 1869.

To @ZZ whom it may concern.-

Be i-t known that we, ALEXANDER MOFAE- LAND and CHAELEs W. PACK, of Paterson, in the county of Passaic and State of New Jer- .sey, have invented a 'new and valuable Improvement in'Means for Accelerating the Motion of Spindle-Tubes; and we do lhereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being had to the annexed drawings, making apart of this specii fication, and to the letters and figures of reference marked thereon.

Figure 1 of the drawings is a side view of our invention attached to a spinning-frame. Fig. 2 is a plan view of the saine. Fig. 8 is a vertical central section of double spindle-tube.

parts separated slightly. i

-v Our inventionl relates to the rotating niotion of the spindle-tubesl of spinning-frames; and it consists, mainly, in a novel arrangement of -ineans whereby, with equal or less friction', use of oil, and wear of parts, the number of revolutions per minute ofthe spin- (lle-tubes may bei. rgely increased over what is practicable in the use of the single spindletube.

rlhe letter A ofthe drawings designates the frame of a spinning-machine, B, a. drum whereby the spindletubes are driven; b', its shaft; C, an inner spindle-tube, with pulley C and foot c; D, an outerspindle-tube, with pulley D and foot d; E, an pil-cup rmly attached to the frame, in the cavity of which the i foot c of the inner and lower spindle-tube ro tates; a, the rod or pin, secured firmly to the frame, about which the spindle-tube C rotates; e', a band or cord passing around'the pulley of the upper and outer spindle-tube,thence around the drum B, thence around the pulley, of the lower and inner spindle-tube, and thence around thel drum B, again back to the upper pulley.

Our invention is operated in the following manner: Rotary motion, by any suitable means, being given to the drum B, is communicated to the spindle-tubes C D by the cords e e.

pin or rod a, and its foot c revolves in thev cavity of the cup E. The spindle-tube D re- The spindle-tube C revolves about the volves about the spindle-tube C in the saine direction, and its foot 'd' is stepped and revolves upon the top of the pulley C". diameter of the pulley D is regulated by that of the drum, and may be taken so as `to give Y any required number of revolutions per ininute-sayfifteen thousand, which isa greater rate of speed than in practice can be e1nployed with a single spinning tube. The same cord, e e', passing over the larger pulley C,'causes thespindle-tube, about which the tube D is revolving, to rotate also in the same direction, thereby decreasing the friction between the outer and inner tubes, and between the foot of the outer tube and its step. The number of revolutions per minute of the in ner spindle-tubedepends upon the difference between its diameter and that of the drum, which may be taken so as to give any nuinber of revolutions required-say seven thou sand live hundred per minute. Now, the single tube cannot be revolved faster than nine thousand per minute in practice, and even this speed causes much friction, wear of parts, and use of oil. Inusing the double tube there is only the friction due, in the example taken for illustration, to a speed of seven thousand live hundred revolutions per minute in case of an y inner spindle-tube, C, with a corresponding decrease in the wear of machinery and use of oil, and in case of an outer spindle-tube, D, the friction dueto the difference between seven thousand iive hundred revolutions per minute and iifteen thousand per minute-the standard taken for illustration-with corresponding decrease in the wear of parts and use of oil. In this man ner the speed of the outer tube may vbe increased to eighteen thousand revolutions per minute, if so desired. The friction of the corde clV about the lesser pulley D is as great as when only one tube is used; but the effect on the cord is materiallylessened by the method adopted of using the saine cord to communicate motion t'o both pulleys C and D,where by on account of its length the different portionsv are not 'brought into contact withl the vpulley, D so frequently.

What we claim as our invention, and desire to secure by Letters Patent, is-

l. An innerspindle-tube, C, with pulleys C and foot c', in combination with an outer The 1 Spindle-tube, D, pulley D and foot d', spinhave hereuntesubseribed our names in the dle a, and oil-cup E, substantially as shown presence of two wltuesses.

und described. f T f Y 2. In combination with un inner spndlelgIIRLD' tube, D, outer spindle-tube, C, spindle a, and j J drum B7the cord c e', arranged as shown und \\'it11esses:

described. \V ILLI.\M H. WALK ma,

In Testimony that We claim the above we JAMES \V. POST. 

